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Southern Ocean Pre-SWOT Level-4 Hourly MITgcm LLC4320 Native Grid 2km Oceanographic Dataset Version 1.0

Metadata Updated: December 7, 2023

This dataset provides a regional multivariate oceanographic state estimate from a global ocean numerical simulation with a focus on the Southern Ocean region. The global ocean simulation is based on the MIT general circulation model (MITgcm) with Lat-Lon-Cap grid (LLC) layout and 1/48-degree (2km at equator) nominal horizontal resolution. This simulation is often referred to as LLC4320 in the community and existing publications. The simulation has 90 vertical levels, with about 1-m vertical resolution at the surface and 30 m down to 500 m, for optimized resolution of the upper-ocean processes. The model has zero parameterized horizontal diffusivity. In the vertical direction, the K-Profile Parameterization (KPP) is used for boundary layer turbulent mixing. It is spun up progressively from the lower resolution MITgcm simulation from the Estimating the Circulation & Climate of the Ocean (ECCO), and forced by the 6-hourly ERA-Interim atmosphere reanalysis ( https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era-interim ). A synthetic surface pressure field consisting of the 16 most dominant tidal constituents is used to dynamically mimic the tidal forcing. The dataset provides hourly oceanographic variables at native grid. Three-dimensional variables include temperature, salinity, and velocity. Two-dimensional variables include sea level anomaly, ocean mixed layer thickness, bottom pressure anomaly, net freshwater flux, net heat flux, shortwave radiative flux, net salt flux, and ocean surface stress.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

References

https://doi.org/10.1029/2019gl083074
https://doi.org/10.1029/2018JC014438
https://doi.org/10.17125/gov2018.ch13
https://doi.org/10.1038/s41467-018-02983-w
https://doi.org/10.1175/jtech-d-17-0076.1
https://doi.org/810.1175/JPO-D-15-0087.1

Dates

Metadata Created Date December 1, 2022
Metadata Updated Date December 7, 2023

Metadata Source

Harvested from NASA Data.json

Graphic Preview

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Additional Metadata

Resource Type Dataset
Metadata Created Date December 1, 2022
Metadata Updated Date December 7, 2023
Publisher NASA/JPL/PODAAC
Maintainer
Identifier C2006849995-POCLOUD
Data First Published 2021-01-20
Language en-US
Data Last Modified 2012-11-14
Category geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Menemenlis, D., Hill, C., Henze, C. E., Wang, J., & Fenty, I.. 2021-02-10. Southern Ocean Pre-SWOT Level-4 Hourly MITgcm LLC4320 Native Grid 2km Oceanographic Dataset Version 1.0. Version 1.0. PO.DAAC. Archived by National Aeronautics and Space Administration, U.S. Government, PO.DAAC. https://doi.org/10.5067/PRESW-ASJ10. Menemenlis, D., Hill, C., Henze, C. E., Wang, J., & Fenty, I. 2021. Southern Ocean Pre-SWOT Level-4 Hourly MITgcm LLC4320 Native Grid 2km Oceanographic Dataset Version 1.0. PO.DAAC, CA, USA. Dataset accessedYYYY-MM-DD at https://doi.org/10.5067/PRESW-ASJ10.
Creator Menemenlis, D., Hill, C., Henze, C. E., Wang, J., & Fenty, I.
Graphic Preview Description Thumbnail
Graphic Preview File https://podaac.jpl.nasa.gov/Podaac/thumbnails/MITgcm_LLC4320_Pre-SWOT_JPL_L4_ACC_SMST_v1.0.jpg
Harvest Object Id 235fef92-0fe8-4622-8676-1e0f745f756d
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.5067/PRESW-ASJ10
Metadata Type geospatial
Old Spatial 150.3021 -56.98995 154.2812 -53.00567
Program Code 026:001
Related Documents https://doi.org/10.1029/2019gl083074, https://doi.org/10.1029/2018JC014438, https://doi.org/10.17125/gov2018.ch13, https://doi.org/10.1038/s41467-018-02983-w, https://doi.org/10.1175/jtech-d-17-0076.1, https://doi.org/810.1175/JPO-D-15-0087.1
Release Place PO.DAAC
Source Datajson Identifier True
Source Hash ef7fb9453480ec005aea4533930d211fc28409dccaae2247b84793c00d407243
Source Schema Version 1.1
Spatial
Temporal 2011-09-13T00:00:00Z/2012-11-15T00:00:00Z

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